I used to have rosacea years ago, but a no-sugar, no white carb diet (other than rice) has really helped. I am gluten intolerant too, so perhaps you have something similar. I noticed that when I went on a candida-killing campaign, my rosacea got significantly better. Your rosacea might also be caused by systemic candida. I recommend trying the same thing I did: Can-Sol, Nature's Sunshine Yeast , and caprylic acid supplements. Definitely supplement everything with a STRONG pro-biotic/acidophilus(refrigerated ones are the best), and stay on the healthy diet.

Topically you might try something like Lamisil cream over the counter. It helped me.

Good luck!
Sandy